Relationship between the D_D values (comparing CNEOS-derived and ground-based orbits) and fireball time (top) and total impact energy (bottom). These values are for the 18 calibrated fireballs, and fireball parameters are those provided by the CNEOS database. Selected D_D thresholds are indicated with dashed vertical lines corresponding to cutoff values of 0.008, 0.05, and 0.1. Fireballs flagged as having low-D_D (D_D < 0.1) are denoted by squares and high-D_D(D_D > 0.1) with circles. Fireballs in each panel are color-coded according to the y axis variable of the other panel.